CN106291350A - A kind of detection method of turbocharger electrically-controlled valve - Google Patents
A kind of detection method of turbocharger electrically-controlled valve Download PDFInfo
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- CN106291350A CN106291350A CN201610805551.4A CN201610805551A CN106291350A CN 106291350 A CN106291350 A CN 106291350A CN 201610805551 A CN201610805551 A CN 201610805551A CN 106291350 A CN106291350 A CN 106291350A
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- electrically
- controlled valve
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- servomotor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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Abstract
The detection method of the present invention a kind of turbocharger electrically-controlled valve belongs to control and Meter Test field, relates to multiple petrolic turbocharger electrically-controlled valve is carried out Detection & Controling, is applied to the detection field of turbocharger.In detection method, first setting up detecting system, detecting system, with microcontroller as core, is aided with power management module, motor drive module, electrically-controlled valve interface module, overcurrent protection module and guidance panel.Testing process is: select electrically-controlled valve model, safety detection is carried out after tested electrically-controlled valve is connected to electrically-controlled valve interface module, check that each signal flowing through electrically-controlled valve is the most normal, the most automatically detect and manual test link, search whether electrically-controlled valve breaks down and which kind of fault occur.The present invention can efficiently solve the technical barrier of middle-size and small-size flight-line maintenance factory maintenance turbocharger electrically-controlled valve, provides effectively for the maintenance of turbocharger electrically-controlled valve, instrument easily.
Description
Technical field
The invention belongs to control and Meter Test field, relate to multiple petrolic turbocharger electrically-controlled valve
Carry out Detection & Controling, be applied to the detection field of turbocharger.
Background technology
In today of China's automobile industry fast development, turbocharger is always as the critical component of automobile engine
Study hotspot.Turbocharger utilizes the exhaust gas-driven turbine of engine emission to rotate and drives compressor to work, by fresh sky
Gas is compressed, and improves engine power performance and reduces oil consumption.Turbocharger conventional in kart at present is can
Becoming nozzle turbocharger, its jet blade is connected with control loops by mechanical linkage, and control loops is then by an electrically-controlled valve
By crank handle turns, change the angle of jet blade, and then change the flow cross-section areas of turbine inlet.Car load is examined
Repairing, Automobile Service Factory of official would generally use special vehicle diagnosis computer, as contained " a kind of vehicle failure of Potiria pectinifera (Mukller et Tro Sehel) et al. invention
Diagnostic system ", Patent No. 201220738182.9, the fault of car load can be judged also by this kind of vehicle fault diagnosis system
Solution is provided, but cannot be directly used to independent automobile component, such as the fault detect of turbocharger electrically-controlled valve；Additionally, should
The price comparison of class diagnostic system is expensive, and is typically to be manufactured by automobile production producer, and is only applicable to the inspection of this brand automobile
Survey, it is impossible to meet the parts maintenance requirements of middle-size and small-size maintenance factory.
Summary of the invention
Present invention mainly solves technical problem is that, invents the detection method of a kind of turbocharger electrically-controlled valve, is used for examining
Survey the turbocharger electrically-controlled valve of common each model, to judge whether electrically-controlled valve can normally work.Detection method passes through group
Whether the detecting system built, there is the electrical damage such as short circuit or open circuit inside detection electrically-controlled valve；Whether the feedback signal of electrically-controlled valve
Normally；Can the servomotor in electrically-controlled valve controlled operate；Servomotor in electrically-controlled valve can rotating in set point,
Whether the problems such as stall occur.The turbocharger of motor electrically-controlled valve detection of detection method compatible different model automobile, for
Flight-line maintenance factory detection electrically-controlled valve provides efficiently, instrument easily, easy to detect, reliable, is maintenance factory to a certain extent
Increase economic efficiency.
The technical scheme is that the detection method of a kind of turbocharger electrically-controlled valve, it is characterized in that, in detection method,
First setting up detecting system, detecting system, with microcontroller as core, is aided with power management module, motor drive module, crosses stream
Protection module, electrically-controlled valve interface module and guidance panel；Wherein, microcontroller 1 and guidance panel 6, motor drive module 3, electricity
Source control module 2 and overcurrent protection module 4 connect respectively, power management module 2 and motor drive module 3, overcurrent protection module 4
It is connected；Motor drive module 3 is connected with overcurrent protection module 4, and overcurrent protection module 4 is connected with electrically-controlled valve interface module 5；Detection
The idiographic flow of method is as follows:
Step 1 connects electrically-controlled valve
Select electrically-controlled valve model, use corresponding cable electrically-controlled valve to be connected with electrically-controlled valve interface module 5；
Step 2 safety detection
Set failure code: A electrically-controlled valve is without response；B electrically-controlled valve internal short-circuit；C electrically-controlled valve feedback is abnormal；D servomotor
Stall；E servomotor rotational angle is limited；F servomotor is without response；Other fault of G servomotor；Safety detection was passed through to flow
Each line current that protection module 4 detection flows through electrically-controlled valve is the most normal；Whether occur inside electrically-controlled valve that circuit damages；By micro-
The feedback signal that controller 1 detects electrically-controlled valve is the most normal；If breaking down, the corresponding failure code of return, if without exception, continues
Continuous execution；
Step 3 detects automatically
Automatically detection is by forward and reverse servomotor that drives respectively, checks the crank-swinging situation of electrically-controlled valve；Microcontroller
According to feedback signal, device 1 judges whether the degree in crank angle of electrically-controlled valve reaches maximum, if not up to maximum, then driven by motor
Dynamic model block 3 forward drive electrically-controlled valve motor, if having reached maximum, then reverse drive motor；Hereafter, microcontroller 1 judges song
Whether handle angle minimizes value, if not up to minima, then reverse drive electrically-controlled valve motor, if having minimized value, then returns
Report test automatically is normal, terminates test automatically；
In whole automatic test, system detects whether occur that the electric current that stall causes is excessive by overcurrent protection module 4；
Detect whether feedback signal meets crank-swinging situation by microcontroller 1；Occur abnormal at either step, the corresponding mistake of return
Code detection of end, if without exception, continue executing with；
Step 4 manual test
If automatically not finding fault during detection, then enter manual test link；In manual test, use guidance panel 6
On knob carry out manual operation servomotor and drive crank operating, microcontroller 1 operates motor according to the change of knob angle and drives
The corresponding forward and reverse driving servomotor of dynamic model block 3, in order to whether hand inspection electrically-controlled valve exists other fault.
The invention has the beneficial effects as follows and efficiently solve the maintenance of middle-size and small-size flight-line maintenance factory, test turbocharger electrically-controlled valve
Technical barrier, for flight-line maintenance factory detection electrically-controlled valve provide colleges and universities, easily instrument, easy to detect, reliable, it is possible to for dimension
Repair factory to increase economic efficiency.
Accompanying drawing explanation
Fig. 1 is the overall flow figure of turbocharger electrically-controlled valve detection method.
Fig. 2 is the composition block diagram of turbocharger electrically-controlled valve detecting system, wherein, and 1-microcontroller, 2-power management
Module, 3-motor drive module, 4-overcurrent protection module, 5-electrically-controlled valve interface module, 6-guidance panel.
Fig. 3 is the flow chart automatically tested electrically-controlled valve in detection method.
Detailed description of the invention
The detailed description of the invention of the present invention is described in detail below in conjunction with concrete technical scheme and accompanying drawing.
A kind of turbocharger electrically-controlled valve detection method, its principle is under the premise that security is guaranteed, uses microcontroller 1
Electrically-controlled valve is carried out feedback control, and makes the crank of electrically-controlled valve move back and forth in working range by motor drive module 3,
Each interface signal of electrically-controlled valve is detected to search fault during whole.
First setting up detecting system, detecting system, with microcontroller 1 as core, is aided with power management module 2, motor driving
Module 3, overcurrent protection module 4, electrically-controlled valve interface module 5 and guidance panel 6, as shown in Figure 2.Wherein, microcontroller 1 has calmly
Time device/counter module and interrupt module, it is possible to control motor drive module 3 and realize commutation, it is possible to by electrically-controlled valve interface mould
Block 5 reads electrically-controlled valve feedback information, and sends control information to electrically-controlled valve, it is possible to button and knob on read operation panel 6
Information also shows information on guidance panel 6；Power management module 2 can be for the different voltages needed for each module offer in system；
Motor drive module 3 can commutate, and drives outside electrically-controlled valve servomotor through overcurrent protection module 4, electrically-controlled valve interface module 5
Rotating；After overcurrent protection module 4 is connected on electrically-controlled valve interface module 5, when detecting that electric current is excessive to microcontroller 1
Go out interrupt signal；Electrically-controlled valve interface module 5 uses specific cable to make system connect from different electrically-controlled valve；Guidance panel 6 wraps
Include button, knob and display module, change for subscriber switch detecting system, selection electrically-controlled valve model and test mode, manual operation
Become electrically-controlled valve degree in crank angle and show test information.
Embodiment uses the detection method detection HELLA electrically-controlled valve of turbocharger electrically-controlled valve of the present invention
6NW009206.This electrically-controlled valve is connected with automobile ECU by the interface of 5 pins, and its servomotor needs the driving electricity of 14V
Pressure, electrically-controlled valve is internal without driven by servomotor module；Additionally, the reference voltage that this electrically-controlled valve also needs to 5V makes for internal circuit
With；The feedback signal of electrically-controlled valve is the PWM modulation signal of 5V, and the dutycycle of this signal is determined by the angle of electrically-controlled valve crank, accounts for
Empty than change in the range of 5%～95%.
For this kind of electrically-controlled valve, detecting system need to use microcontroller 1 simulated automotive ECU that electrically-controlled valve sends control letter
Number, and detect the electrically-controlled valve feedback signal gathered by electrically-controlled valve interface module 5 in real time, by the enumerator mould of microcontroller 1
The pwm signal comprising electrically-controlled valve degree in crank angle information is converted to data by block, carries out feedback control.Additionally, system uses power supply
Management module 2 is powered for electrically-controlled valve, and owing to this model electrically-controlled valve is internal without driven by servomotor module, detecting system needs to make
The 14V unidirectional current needed for servomotor and the reference voltage of 5V, and profit as required is provided for electrically-controlled valve with power management module 2
Control motor drive module 3 with microcontroller 1 to commutate.
Microcontroller 1 uses STC15W4K32S4 or STM32F4；Power management module 2 uses the LM317 tri-adjustable voltage stabilizing of end
Chip obtains 14V voltage, uses 7805 three-terminal voltage-stabilizing chips to obtain 5V voltage；Motor drive module 3 uses H bridge motor to drive electricity
Road；Overcurrent protection module 5 uses ACS712 current detecting chip.
The detection method using turbocharger electrically-controlled valve of the present invention detects specifically comprising the following steps that of this type of electrically-controlled valve
Start after detecting system, select the electrically-controlled valve of corresponding model, system will be prompted to use corresponding cable by electrically-controlled valve with
Electrically-controlled valve interface module 5 connects.
Upon connection, microcontroller 1 will carry out safety detection by overcurrent protection module 4 output interface each to electrically-controlled valve,
Detect the most normal by each signal of electrically-controlled valve interface module 5.If breaking down, then point out failure code and terminate test,
Such as, when the after current that powers on is excessive, control electrically-controlled valve interface module 5 is disconnected by microcontroller 1, and returns failure code
A electrically-controlled valve is without response；If the fault of discovery, then continue executing with.
After safety detection, detecting system is tested automatically, by forward and reverse driving servomotor respectively, checks electricity
The crank-swinging situation of control valve, checks whether feedback signal meets practical operation.Automatically test idiographic flow as it is shown on figure 3,
According to feedback signal, i.e. microcontroller 1 judges whether the degree in crank angle of electrically-controlled valve reaches maximum, if not up to maximum, then lead to
Cross motor drive module 3 forward drive electrically-controlled valve motor, if having reached maximum, then reverse drive motor；Hereafter, microcontroller
1 judges whether degree in crank angle minimizes value, if not up to minima, then reverse drive electrically-controlled valve motor, if minimizing
Value, then return test automatically is normal, terminates test automatically.In test automatically, system detects automatically controlled by overcurrent protection module 4
Whether valve occurs that the electric current caused because of stall is excessive；Detect whether crankangle angle value in feedback signal meets by microcontroller 1
Actual motor drives situation.After either step occurs extremely, the corresponding error code of return detection of end, if without exception,
Continue executing with.Such as, after system drives electrically-controlled valve servomotor to drive crank-swinging by motor drive module 3, cross stream and protect
Protect module 4 and detect that electric current is excessive, then return failure code D servomotor stall, and detection of end；If system drive electrically-controlled valve
After servomotor, microcontroller 1 is not detected by feedback signal change, then return failure code F servomotor is without response, and terminates
Detection.
By manual test can be carried out after test automatically, the knob on guidance panel 6 is used to carry out manual operation servomotor
Drive crank operates, and microcontroller 1 operates motor drive module 3 corresponding forward and reverse driving servo electricity according to the change of knob angle
Machine, to check whether electrically-controlled valve exists other fault.
Use the present invention that turbocharger electrically-controlled valve can carry out fault detect effectively, search electrically-controlled valve internal possible
The various faults occurred, enable flight-line maintenance factory to place under repair for fault or to change, increase economic efficiency, and simplify workflow
Journey.
Claims (1)
1. a detection method for turbocharger electrically-controlled valve, is characterized in that, in detection method, first sets up detecting system, inspection
Examining system, with microcontroller as core, is aided with power management module, motor drive module, electrically-controlled valve interface module, overcurrent protection
Module and guidance panel；Wherein, microcontroller (1) and guidance panel (6), motor drive module (3), power management module (2)
And overcurrent protection module (4) connects respectively, power management module (2) and motor drive module (3), overcurrent protection module (4) phase
Even；Motor drive module (3) is connected with overcurrent protection module (4), and overcurrent protection module (4) is with electrically-controlled valve interface module (5) even
Connect；The idiographic flow of detection method is as follows:
Step 1 connects electrically-controlled valve
Select electrically-controlled valve model, use corresponding cable electrically-controlled valve to be connected with electrically-controlled valve interface module (5)；
Step 2 safety detection
Set failure code: A electrically-controlled valve is without response；B electrically-controlled valve internal short-circuit；C electrically-controlled valve feedback is abnormal；D servomotor stall；
E servomotor rotational angle is limited；F servomotor is without response；Other fault of G servomotor；Safety detection passes through overcurrent protection
Each line current that module (4) detection flows through electrically-controlled valve is the most normal；Whether occur inside electrically-controlled valve that circuit damages；Pass through micro-control
The feedback signal of device processed (1) detection electrically-controlled valve is the most normal；If breaking down, the corresponding failure code of return, if without exception, continues
Continuous execution；
Step 3 detects automatically
Automatically detection is by forward and reverse servomotor that drives respectively, checks the crank-swinging situation of electrically-controlled valve；Microcontroller (1)
Judge according to feedback signal whether the degree in crank angle of electrically-controlled valve reaches maximum, if not up to maximum, then driven by motor
Module (3) forward drive servomotor, if having reached maximum, then reverse drive servomotor；Song is judged by microcontroller (1)
Whether handle angle minimizes value, if not up to minima, then reverse drive servomotor, if having minimized value, then returns
Automatically test is normal, terminates test automatically；
In whole automatic test, system detects whether occur that the electric current that stall causes is excessive by overcurrent protection module (4)；Logical
Cross whether microcontroller (1) detection feedback signal meets crank-swinging situation；Occur abnormal at either step, the corresponding mistake of return
Code detection of end, if without exception, continue executing with；
Step 4 manual test
Manual test uses the knob on guidance panel (6) carry out manual operation servomotor and drive crank operating, microcontroller
(1) operate motor drive module (3) corresponding forward and reverse driving servomotor according to the change of knob angle, carry out hand inspection electricity
Whether control valve exists other fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805551.4A CN106291350B (en) | 2016-09-06 | 2016-09-06 | A kind of detection method of turbocharger electrically-controlled valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805551.4A CN106291350B (en) | 2016-09-06 | 2016-09-06 | A kind of detection method of turbocharger electrically-controlled valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106291350A true CN106291350A (en) | 2017-01-04 |
| CN106291350B CN106291350B (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610805551.4A Expired - Fee Related CN106291350B (en) | 2016-09-06 | 2016-09-06 | A kind of detection method of turbocharger electrically-controlled valve |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6170446B1 (en) * | 1999-06-02 | 2001-01-09 | Mitsubishi Denki Kaibushiki Kaisha | Valve timing control system for internal combustion engine |
| JP2004150456A (en) * | 2002-10-28 | 2004-05-27 | Nissan Motor Co Ltd | Speed change control device of continuously-variable transmission |
| CN204124799U (en) * | 2014-10-14 | 2015-01-28 | 昆山阿普顿自动化系统有限公司 | A kind of electromagnetic valve fool proof integration testing equipment |
| CN204286763U (en) * | 2014-11-27 | 2015-04-22 | 绵阳富临精工机械股份有限公司 | A kind of analog detection safety valve is performance test bed |
| CN105628368A (en) * | 2016-03-15 | 2016-06-01 | 上海交通大学 | Automobile transmission solenoid valve detection device |
-
2016
- 2016-09-06 CN CN201610805551.4A patent/CN106291350B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6170446B1 (en) * | 1999-06-02 | 2001-01-09 | Mitsubishi Denki Kaibushiki Kaisha | Valve timing control system for internal combustion engine |
| JP2004150456A (en) * | 2002-10-28 | 2004-05-27 | Nissan Motor Co Ltd | Speed change control device of continuously-variable transmission |
| CN204124799U (en) * | 2014-10-14 | 2015-01-28 | 昆山阿普顿自动化系统有限公司 | A kind of electromagnetic valve fool proof integration testing equipment |
| CN204286763U (en) * | 2014-11-27 | 2015-04-22 | 绵阳富临精工机械股份有限公司 | A kind of analog detection safety valve is performance test bed |
| CN105628368A (en) * | 2016-03-15 | 2016-06-01 | 上海交通大学 | Automobile transmission solenoid valve detection device |
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| Publication number | Publication date |
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| CN106291350B (en) | 2018-11-09 |
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Granted publication date: 20181109 Termination date: 20210906 |